	#a{width: 90%;
	height: 50px;
	background-color: rgba(255,0,0,0.1);
	text-align: center;
	  margin: auto;}
	
	.a1{width: 150px;
	height: 50px;
	background-color: transparent;
	padding-top: 1px;
	margin-left: 50px;
	float: left;
	font:楷书;
	color: black;
	text-align: center;}
	
	#a2{margin-left: 60px;
	margin-top: 10px;
	float: left;
	color: #FF0000;
	font-weight: 900;
	font-family: "宋体";}
	
	.aa1{border: #000000 0px solid;
	margin:10px auto;
	padding-left:5px;
	font-weight: 900;
	font-size: larger;}
	
	.c{
		width: 85%;
		height: 100%;
		border: orange 3px solid;
		margin: auto;
	}
	
	#c4{width: 85%;
		height: 100%;
		border: red 5px solid;
		margin: auto;}
	
	#C{border: #c80ba6 0px solid;
	width: 94px;
	height:200px;
	font-size: 1.5em;
	font-weight: 500;
	position: fixed;
	right: 0px;
	top: 100px;}
	
	button :hover{color:yellow;
			background-color: crimson;
			border: aquamarine ;}
		
	#C1{
	width: 40px;
	height:60px;
	position: fixed;
	right: 45px;
	top: 700px;}
	
	#c6{width: 300px;
		margin-left: 1000px;}
		
		* {
		  margin: 0;
		  padding: 0;
		}
				
		li {
		  list-style-type: none;
		}
				
		a {
		  text-decoration: none;
		  font-size: 18px;
		  background-color: #be0000;
		}
				
		.nav {
		  margin:0px;
		  width:200px;
		  height: 200px;
		  /* border: #000000 1px solid; */
		}
				
		.nav>li {
		  position: relative;
		  float: left;
		  width: 150px;
		  height: 41px;
		  text-align: center;
		}
				
		.nav li a {
		  display: block;
		  width: 100%;
		  height: 100%;
		  line-height: 41px;
		  color: #333;
		}
				
		.nav>li>a:hover {
		  background-color: #eee;
		}
				
		.nav ul {
		  display: none;
		  position: absolute;
		  top: 41px;
		  left: 0;
		  width: 100%;
		  border-left: 1px solid #FECC5B;
		  border-right: 1px solid #FECC5B;
		}
				
		.nav ul li {
		  border-bottom: 1px solid #FECC5B;
		}
				
		.nav ul li a:hover {
		  background-color: #FFF5DA;
		}